Fig. 2From: Endometriosis in the rectum accompanied by hemorrhoids leading to diagnostic pitfalls: a rare case reportHistopathological findings. The ectopic endometrial tissues (black arrows) were mainly located in the muscularis (a) and submucosa (b) of the rectum. The ectopic endometrial glands (black arrow) and surrounding interstitial tissue (white arrow) at high magnification (c, d). The epithelial cells were columnar with no marked atypia (black arrow) (D). Dilated small vessels (black arrows) were also detected in the muscularis (e) and submucosa (f) of the rectum. Scale bar: A, B: 40 μm; C, E, F: 20 μm; D: 10 μmBack to article page